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Biomimetics
Volume 5
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10.3390/biomimetics5020014
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Article

Structure and Frictional Properties of the Leg Joint of the Beetle Pachnoda marginata (Scarabaeidae, Cetoniinae) as an Inspiration for Technical Joints

by
Steffen Vagts
1,*,
Josef Schlattmann
1,
Alexander Kovalev
2 and
Stanislav N. Gorb
2
1
Department of System Technologies and Engineering Design Methodology, Hamburg University of Technology, Denickestr. 22, D-21079 Hamburg, Germany
2
Department of Functional Morphology and Biomechanics, Kiel University, Am Botanischen Garten 9, D-24118 Kiel, Germany
*
Author to whom correspondence should be addressed.
Biomimetics 2020, 5(2), 14; https://doi.org/10.3390/biomimetics5020014
Submission received: 21 February 2020 / Revised: 13 April 2020 / Accepted: 15 April 2020 / Published: 20 April 2020
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Abstract

The efficient locomotion of insects is not only inspiring for control algorithms but also promises innovations for the reduction of friction in joints. After previous analysis of the leg kinematics and the topological characterization of the contacting joint surfaces in the beetle Pachnoda marginata, in the present paper, we report on the measurement of the coefficient of friction within the leg joints exhibiting an anisotropic frictional behavior in different sliding directions. In addition, the simulation of the mechanical behavior of a single microstructural element helped us to understand the interactions between the contact parts of this tribological system. These findings were partly transferred to a technical contact pair which is typical for such an application as joint connectors in the automotive field. This innovation helped to reduce the coefficient of friction under dry sliding conditions up to 17%.
Keywords: locomotion; walking; leg; joints; insects; Arthropoda; friction; coefficient of friction; biotribology; biomimetics locomotion; walking; leg; joints; insects; Arthropoda; friction; coefficient of friction; biotribology; biomimetics

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MDPI and ACS Style

Vagts, S.; Schlattmann, J.; Kovalev, A.; Gorb, S.N. Structure and Frictional Properties of the Leg Joint of the Beetle Pachnoda marginata (Scarabaeidae, Cetoniinae) as an Inspiration for Technical Joints. Biomimetics 2020, 5, 14. https://doi.org/10.3390/biomimetics5020014

AMA Style

Vagts S, Schlattmann J, Kovalev A, Gorb SN. Structure and Frictional Properties of the Leg Joint of the Beetle Pachnoda marginata (Scarabaeidae, Cetoniinae) as an Inspiration for Technical Joints. Biomimetics. 2020; 5(2):14. https://doi.org/10.3390/biomimetics5020014

Chicago/Turabian Style

Vagts, Steffen, Josef Schlattmann, Alexander Kovalev, and Stanislav N. Gorb. 2020. "Structure and Frictional Properties of the Leg Joint of the Beetle Pachnoda marginata (Scarabaeidae, Cetoniinae) as an Inspiration for Technical Joints" Biomimetics 5, no. 2: 14. https://doi.org/10.3390/biomimetics5020014

APA Style

Vagts, S., Schlattmann, J., Kovalev, A., & Gorb, S. N. (2020). Structure and Frictional Properties of the Leg Joint of the Beetle Pachnoda marginata (Scarabaeidae, Cetoniinae) as an Inspiration for Technical Joints. Biomimetics, 5(2), 14. https://doi.org/10.3390/biomimetics5020014

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